10results about How to "Strong connection stability" patented technology

The invention discloses a modular connecting assembly of a combustion furnace sound barrier, and relates to the technical field of sound insulation of long-acting environment-friendly combustion furnaces for oil testing. The assembly comprises a straight face connecting unit used for tightly attaching and connecting the adjacent sound insulation plates of the straight face part, the straight face connecting unit comprises a straight face reducing stud and two straight face lug plates, the two straight face lug plates are arranged in an up-down mirror symmetry mode, and the inner ends of the two straight face lug plates are fixed to the hinged side frame edges of the adjacent sound insulation plates of the straight face part respectively. The straight-face variable-diameter stud comprises a large-diameter section, a variable-diameter section and a small-diameter section which are coaxial, all the sections are in smooth transition connection, in the locking state, the two straight-face lug plates are located and connected to the large-diameter section in a sleeving mode, in the unlocking state, the straight-face lug plate on the lower side is connected to the small-diameter section in a sleeving mode, and the straight-face lug plate on the lower side is located and connected to the small-diameter section in a sleeving mode. And the straight-surface lug plate on the upper side is sleeved on the large-diameter section. The sound insulation barrier is suitable for a foldable and spliced type sound insulation barrier with a multi-face corner enclosure, the sealing performance of the connecting position is high, sound insulation is good, and disassembly and assembly and corner splicing are convenient.

The utility model discloses a mounting structure of prefabricated outer wall board belongs to wallboard installation technical field, including outer wall board body, the top two sides edges of outer wall board body symmetry are equipped with two upper connecting parts, the bottom middle position of outer wall board body is equipped with lower connecting part, and the docking space of the adaptation joint of lower connecting part is formed to two upper connecting parts, and this mounting structure still includes the installation strip for the location resistance of two upper connecting parts and lower connecting part simultaneously, the utility model discloses the cooperation between two upper connecting parts and a lower connecting part, can realize the precision docking between two outer wall board bodies, and can play the effect of location resistance to upper connecting part and lower connecting part simultaneously, thereby realizes the synchronous positioning of two outer wall board bodies. The whole mounting structure is simple to operate, and the connection stability is strong, and after installing, can realize the dismounting replacement of single outer wall board body through the dismounting of installation strip.

The invention relates to the technical field of cable protection, in particular to a cable protection sleeve. The protective sleeve comprises an inner layer, a middle layer and an outer layer, the middle layer comprises a first layer and a second layer, the first layer is fixedly connected with the inner layer, and the second layer is fixedly connected with the outer layer; the first layer is made of a glass fiber reinforced composite material, the second layer is of a grid framework structure made of a shape memory alloy material, the grid framework structure is embedded in the first layer, and inner grid spaces of the grid framework structure are filled with magnetorheological elastomers; the inner layer is a waterproof insulating layer sprayed on the first layer; the outer layer is made of a modified polyurethane material and is of a corrugated structure; the cable protection sleeve is provided with an opening structure, sealing parts are arranged on the two sides of the opening structure, the sealing parts on the two sides can abut against each other in a matched mode so that the installation cavity channel of the inner layer can be sealed and isolated from the outside, and the sealing parts are made of rubber materials. A plurality of rubber supporting rings are arranged on the inner wall face of the inner layer and protrude out of the inner wall face of the inner layer, and heat conduction grooves are formed in the rubber supporting rings.

The utility model discloses a PP thick plate extrusion die, and relates to the technical field of extrusion dies. The extrusion die comprises an extrusion die main body and an extruder screw cylinder connected with the rear end of the extrusion die main body, and further comprises a connecting stop block part fixedly arranged on the side wall of the extrusion die main body, an extrusion head is arranged at the front end of the extrusion die main body, and a transverse insertion rod part is fixedly arranged at one end, close to the connecting stop block part, of the extrusion head; the end face, close to the transverse insertion rod part, of the connecting stop block part is provided with an opening allowing the transverse insertion rod part to penetrate through, and the surface of the connecting stop block part is longitudinally provided with an insertion hole communicating with the opening. The front ends of the positioning insertion rod parts which are symmetrically distributed up and down are inserted into the positioning longitudinal holes through the elasticity of the connecting spring parts, then the transverse insertion rod part and the extrusion head are positioned and installed, and the positioning insertion rod parts are hidden in the inner side of the shifting open groove, so that the positioning insertion rod parts are not exposed; therefore, the situation of unstable connection of the extrusion head caused by mistaken touch can be effectively avoided.

The utility model discloses a kind of heating pipeline pressure testing devices, it is related to pipeline pressure testing technical field, it includes mounting bracket, and flange plate is provided on the water inlet end of the communication pipeline, and flange plate is fixedly connected with the water outlet end of pressurizing pump;Sealing mechanism is arranged on the outside of communication pipeline, and sealing mechanism is used to close the connecting gap between communication pipeline and heating pipeline;Locking mechanism is arranged on the inside of communication pipeline, and locking mechanism is used to lock communication pipeline and heating pipeline, the locking mechanism includes the mounting screw fixedly connected with communication pipeline, fixedly set with fixed plate on the mounting screw, and arc plate is provided on the fixed plate, one end of the mounting screw is fixedly set with hollow sleeve, and locking ring for clamping heating pipeline is slidably arranged in hollow sleeve. The heating pipeline pressure testing device can connect different specifications of heating pipeline, and installation is convenient, stable.

The invention discloses an underground comprehensive pipe gallery anti-seepage protection structure which comprises a pipe gallery main body, the pipe gallery main body is of a reinforced concrete box type structure and is formed by pouring low-heat micro-expansion anti-seepage type concrete, a silt discharging pipeline is laid in the pipe gallery main body, and a connecting stand column is arranged in the middle of the pipe gallery main body in a supporting mode. The reinforced concrete box type structure of the pipe gallery body is formed by pouring the low-heat micro-expansion impervious concrete, compared with traditional common concrete, the concrete material is low in heat productivity in the hydration process, structural cracks generated by temperature difference stress can be effectively reduced, and the construction efficiency is improved. Meanwhile, pores in concrete can be filled with the micro-expansion characteristic, the anti-seepage capacity of the pipe gallery body is improved, the problem that underground water leakage is prone to being caused by cracks of a traditional pipe gallery is solved, in addition, accumulated water in the pipe gallery can be discharged in time in cooperation with arrangement of silt discharging pipelines in the pipe gallery, and the leakage risk is further reduced.

This utility model discloses an easily assembled inductive displacement sensor, relating to the field of inductive displacement sensor technology. The utility model includes a sensor body with multiple sets of mounting components. These mounting components are configured to install the sensor body in a designated position. Each mounting component includes an elastic plate with two clamping plates fixedly mounted on its two sides. The sensor body has multiple slots embedded along its length for engaging the clamping plates and the elastic plate. The elastic plate is elastic and has multiple limiting teeth fixedly mounted on the ends of the two clamping plates opposite to the elastic plate. The slots contain multiple limiting grooves that extend along the circumference of the limiting teeth. This utility model, through the cooperation of the mounting components and the slots, stably mounts the sensor body onto the mounting plate, completing the assembly. The overall structure features simple installation steps, high installation efficiency, strong connection stability, good installation flexibility, and easy disassembly and maintenance.

This utility model discloses a fastener, a hub cover mounting structure, and a hub assembly, including a first fixing member, a first movable member penetrating the first fixing member, and a first control member disposed within the first fixing member and controlling the extension length of the first movable member relative to the outer surface of the first fixing member. The first fixing member can connect to the hub cover. By rotating the first control member, the extension amount of the first movable member relative to the first fixing member is controlled, thereby enabling the fastener to be inserted into the center hole of the hub and fixed by the first movable member against the center hole, thus fixing the hub cover. This installation method is simple, easy to implement, and has strong connection stability. Its fixing position can be adjusted according to actual needs. When it is necessary to transfer the fastener to other hubs for installation, by rotating the first control member, the first movable member and the center hole are in a non-abutment state, thereby transferring it to other hubs for installation. It has strong versatility and good interchangeability.

The utility model relates to the technical field of fire fighting equipment, and discloses a corrosion-resistant ventilating duct which comprises an L-shaped pipe, a flange is fixedly installed at the end of the L-shaped pipe, a sealing gasket is fixedly connected in the flange, a ventilating duct body is movably installed in the flange, and a lifting lug is fixedly connected to the top of the ventilating duct body. A hook is arranged in the lifting lug, the hook is hung in the lifting lug, an anti-releasing buckle is rotationally connected to the interior of the hook, a spring is fixedly connected to the side face of the anti-releasing buckle and the side face of the hook, a mounting plate is fixedly connected to the top of the hook, and bolts are in threaded connection to the two sides of the interior of the mounting plate. Compared with the prior art, the mounting structure has the following advantages and effects that the bolt is in threaded connection with the interior of the mounting plate, so that the bolt extends to the indoor ceiling, the ventilation pipeline can be hung on the indoor ceiling, the connection stability is high, and the ventilation pipeline is convenient to mount.

The utility model discloses a windowsill lintel wall building structure which comprises a bottom wall, a side wall is arranged above the bottom wall, a prefabricated coping beam is arranged between the bottom wall and the side wall, a structural beam is arranged at the end, away from the prefabricated coping beam, of the side wall, a connecting rib is arranged in the prefabricated coping beam, and the connecting rib is arranged in the structural beam. Side formworks are arranged on the two sides of the prefabricated capping beam, clamping rods are arranged above the side formworks, clamping plates are arranged at the two ends of each clamping rod, and limiting nuts are arranged on the outer sides of the clamping plates. According to the windowsill lintel wall building structure, the prefabricated coping beam is arranged between the bottom wall and the side walls, meanwhile, the side formworks are arranged on the front portion and the rear portion of the bottom wall, the process of pouring concrete between the connecting ribs and the prefabricated coping beam is conducted between the side walls, building of the side walls cannot be affected, and the construction period can be shortened; the prefabricated coping beam after concrete pouring can still enable the bottom wall and the side wall to have high connection stability, and then the stability of the windowsill is improved.